50+ Matrix MCQs with FREE PDF

We have the best collection of the Matrix MCQs and answer with FREE PDF. These Matrix MCQs will help you to prepare for any competitive exams like: BCA, MCA, GATE, GRE, IES, PSC, UGC NET, DOEACC Exams at all levels – you just have to practice regularly.

Matrix MCQs

1. If column-major order is used, how is the following matrix stored in memory?

a b c

d e f

g h i

a) ihgfedcba

b) abcdefghi

c) cfibehadg

d) adgbehcfi

Answer: adgbehcfi

2. Which of the following don’t use matrices?

a) In solving linear equations

b) Image processing

c) Graph theory

d) Sorting numbers

Answer: Sorting numbers

3. What is the order of a matrix?

a) number of rows X number of columns

b) number of columns X number of rows

c) number of rows X number of rows

d) number of columns X number of columns

Answer: number of rows X number of columns

4. Which of the following property does not hold for matrix multiplication?

a) Associative

b) Distributive

c) Commutative

d) Additive Inverse

Answer: Commutative

5. How do you allocate a matrix using a single pointer in C?(r and c are the number of rows and columns respectively)

a) int *arr = malloc(r * c * sizeof(int));

b) int *arr = (int *)malloc(r * c * sizeof(int));

c) int *arr = (int *)malloc(r + c * sizeof(int));

d) int *arr = (int *)malloc(r * c * sizeof(arr));

Answer: int *arr = (int *)malloc(r * c * sizeof(int));

6. Matrix A when multiplied with Matrix C gives the Identity matrix I, what is C?

a) Identity matrix

b) Inverse of A

c) Square of A

d) Transpose of A

Answer: Inverse of A

7. Which of the following is an advantage of matrices?

a) Internal complexity

b) Searching through a matrix is complex

c) Not space efficient

d) Graph Plotting

Answer: Graph Plotting

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